18+1 Channel Voltage Buffers for TFT LCD
EC5579
Electrical Characteristics
VS+= +5V, VS - = -5V, RL = 10kΩ and CL = 10pF to 0V, TA = 25°C unless otherwise specified.
Parameter Description
Condition
Min
Input Characteristics
VOS
TCVOS
IB
RIN
CIN
Input Offset Voltage
Average Offset Voltage Drift
Input Bias Current
Input Impedance
Input Capacitance
VCM= 0V
—
[1]
—
VCM= 0V
—
—
—
—
—
Output Characteristics
VOL
Output Swing Low
IL= -5mA (A, B, Q, R rail-to-rail Buffers)
VOH
Output Swing High
IL= 5mA (A, B, Q, R rail-to-rail Buffers) 4.85
VOL
Output Swing Low
IL= -5mA (C ~ P Buffers)
-3.5
VOH
Output Swing High
ISC
Short Circuit Current
IL= 5mA (C ~ P Buffers)
3.5
(A ~ R Buffers)
—
IOUT
Output Current
(A ~ R Buffers)
—
ISC(Com)
IOUT(Com)
Short Circuit Current
Output Current
(Com Buffer)
—
(Com Buffer)
—
Power Supply Performance
PSRR
IS
IS(Com)
Power Supply Rejection Ratio
VS is moved from ±3.25V to ±7.75V
60
Supply Current (Per Amplifier)
No Load (A ~ R Buffers)
—
Supply Current
(Com Buffer)
—
Dynamic Performance
SR
Slew Rate [2]
-4.0V≦VOUT≦4.0V, 20% to 80%
—
tS
Settling to +0.1% (AV = +1)
(AV = +1), VO=2V Step
—
BW
-3dB Bandwidth
RL = 10KΩ, CL = 10PF
—
PM
Phase Margin
RL = 10KΩ, CL = 10PF
—
CS
Channel Separation
f = 1 MHz
—
1. Measured over operating temperature range
2. Slew rate is measured on rising and falling edges
Typ Max Units
2
12 mV
5
— µV/°C
2
50 nA
1
—
G
1.35 — pF
-4.92 -4.85 V
4.92 —
V
——
V
——
V
±120 —
mA
±30
—
mA
±300 —
mA
±100 —
mA
80
—
dB
500 750 µA
8
—
mA
1
— V/µs
5
— µs
2
— MHz
60
— Degrees
75 — dB
E-CMOS Corp. (www.ecmos.com.tw)
Page 4 of 12
2007/06/29